Computational hydroacoustic analysis of the BB2 submarine using the advective Ffowcs Williams and Hawkings equation with Wall-Modeled LES
نویسندگان
چکیده
In the present work we perform numerical characterization of hydrodynamic and hydroacoustic field a notional submarine geometry (the BB2 submarine). Starting from model-scale CFD simulation, full scale acoustic signature is derived. We use large eddy simulation with wall-layer model laboratory-scale experiments at value Reynolds number equal to 1.2×106. The conditions are those wind-tunnel test. study carried out focusing on in its own basic configuration without propeller highlight properties hull by itself replicate silent advancing running (where all non-essential source noise shut down speed minimum minimize noise). this configuration, wake main noise. computational analysis based Ffowcs-Williams Hawkings equation, here considered advective form, which most suitable form for wind-tunnel-like problems. results show that spectrum broadband far SPL evaluated near contains coherent structures associated presence sail appendages.
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ژورنال
عنوان ژورنال: Applied Ocean Research
سال: 2022
ISSN: ['0141-1187', '1879-1549']
DOI: https://doi.org/10.1016/j.apor.2022.103360